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How to determine Windows startup mode

A simple API call to determine if Windows is currently running in Normal mode, Safe Mode, or Safe Mode with Network Support.


Add the following code to the delarations section of a module

Option Explicit

Public Declare Function GetSystemMetrics Lib "user32" _
(ByVal nIndex As Long) As Long

Public Const SM_CLEANBOOT = 67  


Add the following code to the form containing a label and a command button:

Private Sub Command1_Click()
Select Case GetSystemMetrics(SM_CLEANBOOT)
Case 1: Label1 = "Safe Mode."
Case 2: Label1 = "Safe Mode with Network support."
Case Else: Label1 = "Windows is running normally."
End Select
End Sub  

The constant SM_CLEANBOOT is not documented in the VB4 or VB5 API viewers. Valid return values for SM_CLEANBOOT are 0 (normal), 1 and 2.



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